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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.15 by root, Sun Jun 11 15:02:16 2006 UTC vs.
Revision 1.27 by root, Fri Jul 21 00:51:39 2006 UTC

1package cf; 1package cf;
2 2
3use Symbol; 3use Symbol;
4use List::Util; 4use List::Util;
5use Storable; 5use Storable;
6use Opcode;
7use Safe;
8use Safe::Hole;
9
10use Event;
11$Event::Eval = 1; # no idea why this is required, but it is
6 12
7use strict; 13use strict;
8 14
9our %COMMAND; 15our %COMMAND;
10our @EVENT; 16our @EVENT;
11our %PROP_TYPE; 17our %PROP_TYPE;
12our %PROP_IDX; 18our %PROP_IDX;
19our $LIBDIR = maps_directory "perl";
13 20
14BEGIN { 21BEGIN {
15 @EVENT = map lc, @EVENT; 22 @EVENT = map lc, @EVENT;
16 23
17 *CORE::GLOBAL::warn = sub { 24 *CORE::GLOBAL::warn = sub {
… …
58prop_gen MAP_PROP => "cf::map"; 65prop_gen MAP_PROP => "cf::map";
59prop_gen ARCH_PROP => "cf::arch"; 66prop_gen ARCH_PROP => "cf::arch";
60 67
61# guessed hierarchies 68# guessed hierarchies
62 69
63@cf::object::player::ISA = 'cf::object'; 70@ext::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
64@cf::object::map::ISA = 'cf::object'; 71@ext::cf::object::map::ISA = @cf::object::map::ISA = 'cf::object';
72
73# we bless all objects into derived classes to force a method lookup
74# within the Safe compartment.
75for my $pkg (qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region)) {
76 no strict 'refs';
77 @{"ext::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
78}
79
80$Event::DIED = sub {
81 warn "error in event callback: @_";
82};
65 83
66my %ext_pkg; 84my %ext_pkg;
67my @exts; 85my @exts;
68my @hook; 86my @hook;
69my %command; 87my %command;
… …
100 118
101sub register_command { 119sub register_command {
102 my ($name, $time, $cb) = @_; 120 my ($name, $time, $cb) = @_;
103 121
104 my $caller = caller; 122 my $caller = caller;
105
106 warn "registering command '$name/$time' to '$caller'"; 123 #warn "registering command '$name/$time' to '$caller'";
107 124
108 push @{ $command{$name} }, [$time, $cb, $caller]; 125 push @{ $command{$name} }, [$time, $cb, $caller];
109 $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} }; 126 $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
110} 127}
111 128
129sub register_extcmd {
130 my ($name, $cb) = @_;
131
132 my $caller = caller;
133 #warn "registering extcmd '$name' to '$caller'";
134
135 $extcmd{$name} = [$cb, $caller];
136}
137
112sub register { 138sub register {
113 my ($base, $pkg) = @_; 139 my ($base, $pkg) = @_;
114 140
115 for my $idx (0 .. $#EVENT) { 141 for my $idx (0 .. $#EVENT) {
116 if (my $ref = $pkg->can ("on_$EVENT[$idx]")) { 142 if (my $ref = $pkg->can ("on_$EVENT[$idx]")) {
117 warn "registering $EVENT[$idx] hook to '$pkg'\n"; 143 #warn "registering $EVENT[$idx] hook to '$pkg'\n";
118 $hook[$idx]{$base} = $ref; 144 $hook[$idx]{$base} = $ref;
119 } 145 }
120 } 146 }
121} 147}
122 148
… …
145 171
146 push @exts, $pkg; 172 push @exts, $pkg;
147 $ext_pkg{$base} = $pkg; 173 $ext_pkg{$base} = $pkg;
148 174
149# no strict 'refs'; 175# no strict 'refs';
150# @{"$pkg\::ISA"} = cf::ext::; 176# @{"$pkg\::ISA"} = ext::;
151 177
152 register $base, $pkg; 178 register $base, $pkg;
153} 179}
154 180
155sub unload_extension { 181sub unload_extension {
156 my ($pkg) = @_; 182 my ($pkg) = @_;
157 183
158 warn "removing extension $pkg\n"; 184 warn "removing extension $pkg\n";
185
186 if (my $cb = $pkg->can ("on_unload")) {
187 $cb->($pkg);
188 }
159 189
160 # remove hooks 190 # remove hooks
161 for my $idx (0 .. $#EVENT) { 191 for my $idx (0 .. $#EVENT) {
162 delete $hook[$idx]{$pkg}; 192 delete $hook[$idx]{$pkg};
163 } 193 }
… …
174 delete $COMMAND{"$name\000"}; 204 delete $COMMAND{"$name\000"};
175 } 205 }
176 } 206 }
177 207
178 # remove extcmds 208 # remove extcmds
179 for my $name (keys %command) { 209 for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
180 my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
181
182 if (@cb) {
183 $command{$name} = \@cb;
184 $COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
185 } else {
186 delete $command{$name}; 210 delete $extcmd{$name};
187 delete $COMMAND{"$name\000"};
188 }
189 } 211 }
190
191 212
192 Symbol::delete_package $pkg; 213 Symbol::delete_package $pkg;
193} 214}
194 215
195sub load_extensions { 216sub load_extensions {
… …
210 if ($who->flag (FLAG_WIZ)) { 231 if ($who->flag (FLAG_WIZ)) {
211 $who->message ("reloading..."); 232 $who->message ("reloading...");
212 233
213 warn "reloading...\n"; 234 warn "reloading...\n";
214 eval { 235 eval {
236 # 1. cancel all watchers
237 $_->cancel for Event::all_watchers;
238
239 # 2. unload all extensions
240 for (@exts) {
241 $who->message ("unloading <$_>");
215 unload_extension $_ for @exts; 242 unload_extension $_;
243 }
244
245 # 3. unload all modules loaded from $LIBDIR
246 while (my ($k, $v) = each %INC) {
247 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
248
249 $who->message ("removing <$k>");
250 delete $INC{$k};
251
252 $k =~ s/\.pm$//;
253 $k =~ s/\//::/g;
254
255 if (my $cb = $k->can ("unload_module")) {
256 $cb->();
257 }
258
259 Symbol::delete_package $k;
260 }
261
262 # 4. get rid of ext::, as good as possible
263 Symbol::delete_package "ext::$_"
264 for qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region);
265
266 # 5. remove register_script_function callbacks
267 # TODO
268
269 # 6. unload cf.pm "a bit"
216 delete $INC{"cf.pm"}; 270 delete $INC{"cf.pm"};
217 271
218 # don't, removes xs symbols, too 272 # don't, removes xs symbols, too
219 #Symbol::delete_package $pkg; 273 #Symbol::delete_package __PACKAGE__;
220 274
275 # 7. reload cf.pm
276 $who->message ("reloading cf.pm");
221 require cf; 277 require cf;
222 }; 278 };
223 warn $@ if $@; 279 warn $@ if $@;
224 $who->message ($@) if $@; 280 $who->message ($@) if $@;
225 warn "reloaded\n"; 281 warn "reloaded\n";
… …
235# into pkg::->on_extcmd_arg1 (...) while shortcutting a few 291# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
236 292
237sub on_extcmd { 293sub on_extcmd {
238 my ($pl, $buf) = @_; 294 my ($pl, $buf) = @_;
239 295
240 my ($id, $pkg, $name, $data) = split / /, $buf, 4; 296 my ($type) = $buf =~ s/^(\S+) // ? $1 : "";
241 297
242 if (my $method = "cf::ext::$pkg"->can ("on_extcmd_$name")) { 298 $extcmd{$type}[0]->($pl, $buf)
243 $method->($pl, $id, $buf); 299 if $extcmd{$type};
244 }
245} 300}
246 301
247############################################################################# 302#############################################################################
248# load/save/clean perl data associated with a map 303# load/save/clean perl data associated with a map
249 304
… …
305# load/save perl data associated with player->ob objects 360# load/save perl data associated with player->ob objects
306 361
307*on_player_load = sub { 362*on_player_load = sub {
308 my ($ob, $path) = @_; 363 my ($ob, $path) = @_;
309 364
310 if (open my $fh, "<:raw", "$path.cfperl") {
311
312 #d##TODO#remove
313
314 my $data = Storable::thaw do { local $/; <$fh> };
315
316 $data->{version} <= 1
317 or return; # too new
318
319 %$ob = %{$data->{ob}};
320 return;
321 }
322
323 for my $o ($ob, $ob->inv) { 365 for my $o ($ob, $ob->inv) {
324 if (my $value = $o->get_ob_key_value ("_perl_data")) { 366 if (my $value = $o->get_ob_key_value ("_perl_data")) {
325 $o->set_ob_key_value ("_perl_data"); 367 $o->set_ob_key_value ("_perl_data");
326 368
327 %$o = %{ Storable::thaw pack "H*", $value }; 369 %$o = %{ Storable::thaw pack "H*", $value };
… …
332*on_player_save = sub { 374*on_player_save = sub {
333 my ($ob, $path) = @_; 375 my ($ob, $path) = @_;
334 376
335 $_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_) 377 $_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_)
336 for grep %$_, $ob, $ob->inv; 378 for grep %$_, $ob, $ob->inv;
337
338 unlink "$path.cfperl";#d##TODO#remove
339}; 379};
380
381#############################################################################
382# core extensions - in perl
383
384=item cf::player::exists $login
385
386Returns true when the given account exists.
387
388=cut
389
390sub cf::player::exists($) {
391 cf::player::find $_[0]
392 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
393}
394
395# rough implementation of a future "reply" method that works
396# with dialog boxes.
397sub cf::object::player::reply($$$;$) {
398 my ($self, $npc, $msg, $flags) = @_;
399
400 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
401
402 if ($self->{record_replies}) {
403 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
404 } else {
405 $msg = $npc->name . " says: $msg" if $npc;
406 $self->message ($msg, $flags);
407 }
408}
409
410#############################################################################
411# map scripting support
412
413our $safe = new Safe "ext";
414our $safe_hole = new Safe::Hole;
415
416$SIG{FPE} = 'IGNORE';
417
418$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
419
420# here we export the classes and methods available to script code
421
422for (
423 ["cf::object" => qw(contr pay_amount pay_player)],
424 ["cf::object::player" => qw(player)],
425 ["cf::player" => qw(peaceful)],
426) {
427 no strict 'refs';
428 my ($pkg, @funs) = @$_;
429 *{"ext::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
430 for @funs;
431}
432
433sub safe_eval($;@) {
434 my ($code, %vars) = @_;
435
436 my $qcode = $code;
437 $qcode =~ s/"/‟/g; # not allowed in #line filenames
438 $qcode =~ s/\n/\\n/g;
439
440 local $_;
441 local @ext::cf::_safe_eval_args = values %vars;
442
443 $code =
444 "do {\n"
445 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
446 . "#line 0 \"{$qcode}\"\n"
447 . $code
448 . "\n}"
449 ;
450
451 sub_generation_inc;
452 my @res = wantarray ? $safe->reval ($code) : scalar $safe->reval ($code);
453 sub_generation_inc;
454
455 wantarray ? @res : $res[0]
456}
457
458sub register_script_function {
459 my ($fun, $cb) = @_;
460
461 no strict 'refs';
462 *{"ext::$fun"} = $safe_hole->wrap ($cb);
463}
464
465#############################################################################
466# initialisation
340 467
341register "<global>", __PACKAGE__; 468register "<global>", __PACKAGE__;
342 469
470unshift @INC, $LIBDIR;
471
343load_extensions; 472load_extensions;
344 473
3451 4741
346 475

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